Introduction: A number of measurement points exist at different voltage levels on the network utilising a range of different measuring transducers in a variety of configurations. This proposal is aimed at developing a better understanding of the inherent accuracy of measurement transducers and to explore the options for either retrofitting new devices or calibrating the accuracy of existing devices.

Objectives: Various issues will be investigated including:

• Accuracy at minimum load

• Accuracy at maximum load

• Immunity against external disturbances (both AC and DC)

• Cost

• Ease of installation

• Potential for tamper-proofing

The aim of the project is to be able to identify and assess the types (accuracy class, manufacturer, accuracy) of measurement transducers installed in identified locations and to provide a series of options to increase accuracy.